Humidifying and water replenishing system for low-pressure test equipment
Through the fully enclosed stainless steel box humidification and water replenishment system, the use of vacuum electric ball valves and water peristaltic pumps and other components solves the pressure fluctuation and humidity instability problems of low-pressure test equipment during humidification under low pressure, and achieves precise control of pressure and humidity.
Patent Information
- Application Number
- CN202422623415.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-30
AI Technical Summary
When existing low-pressure test equipment is humidified under low pressure, the water replenishment system causes pressure fluctuations and humidity instability, affecting the test accuracy.
A fully enclosed stainless steel box humidification and water replenishment system was designed, which uses a vacuum electric ball valve and a water pumping peristaltic pump, combined with a water level controller and an air pressure balance component to achieve automatic water replenishment and air pressure regulation, ensuring equipment pressure stability and humidity control.
The equipment pressure is stabilized during the humidification process under low pressure, which avoids pressure fluctuation and humidity fluctuation and ensures the test accuracy.
Smart Images
Figure CN223404955U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of low-pressure testing, in particular to a humidifying and water-replenishing system for low-pressure testing equipment. [Background Technology]
[0002] At present, low-pressure test equipment is widely used in aerospace, electrical engineering, electronic products and other fields. Since some tests require humidity tests under low pressure, the equipment's humidification system is required to automatically replenish water at low pressure without affecting the pressure value of the low-pressure test chamber, and the humidity of the test chamber will not fluctuate due to water ingress.
[0003] Based on this, the utility model designs a low-pressure test equipment humidification and water replenishment system to solve the above problems. [Utility Model Content]
[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a humidification and water replenishment system for low-pressure test equipment.
[0005] In order to achieve the above-mentioned purpose, a humidification and water replenishment system for low-pressure test equipment is designed, comprising a fully enclosed stainless steel box, wherein the bottom of the fully enclosed stainless steel box is connected to a water replenishment component for replenishing water; the side wall of the fully enclosed stainless steel box is installed with a water level controller for monitoring the water level of the fully enclosed stainless steel box; an atomizer for atomization is fixedly installed at the bottom of the fully enclosed stainless steel box; a heating tube for regulating water temperature is installed on the side wall of the fully enclosed stainless steel box; the air outlet of the fully enclosed stainless steel box is provided with an air pressure balancing component for balancing the atomizing gas pressure; the air pressure balancing component is connected to a vacuum electric ball valve through a pipeline, and the vacuum electric ball valve is connected to the low-pressure test equipment through a pipeline.
[0006] Furthermore, the water replenishment component includes a water supply tank, a vacuum solenoid valve and a water pumping peristaltic pump. The water outlet of the water supply tank is connected to the vacuum solenoid valve through a pipe. The water outlet of the water supply tank is located at the lower end of the side wall of the water supply tank. The vacuum solenoid valve is connected to the input end of the water pumping peristaltic pump through a pipe. The output end of the water pumping peristaltic pump is connected to a fully enclosed stainless steel box through a pipe.
[0007] Furthermore, a safety valve for pressure relief is installed on the upper end of the side wall of the fully enclosed stainless steel box.
[0008] Furthermore, the safety valve is arranged higher than the water level detection point on the water level controller.
[0009] Furthermore, the air pressure balancing assembly includes an air outlet pipe, an air pressure balancing plate and an anti-slip ring. The air outlet pipe is fixedly installed on the top of the fully enclosed stainless steel box. The bottom of the air outlet pipe is fixedly connected to an anti-slip ring. The air pressure balancing plate is slidably connected to the outer wall of the air outlet pipe through a straight sliding hole, and the outer wall of the air pressure balancing plate is slidably connected to the inner wall of the fully enclosed stainless steel box.
[0010] Furthermore, the air outlet pipe passes through a top pipeline and a vacuum electric ball valve.
[0011] Compared with the existing technology, the present invention has the following beneficial effects: the water supply tank of the present invention adopts a fully enclosed structure, and the humidification process does not cause air to enter when humidifying the low-pressure test equipment, thereby avoiding pressure fluctuations in the low-pressure test equipment and making pressure control more precise. The vacuum electric ball valve can disconnect the fully enclosed stainless steel box and the low-pressure test equipment when the wet heat test is not being performed, minimizing the amount of air extracted by the low-pressure test equipment. The water level controller can detect the water level in real time. When the water level is lower than the preset value, the water replenishment component opens and automatically replenishes the fully enclosed stainless steel box with water.
[0012] The water outlet of the water supply tank of the utility model is located at the lower end of the side wall of the water supply tank, which further reduces the possibility of air entering the water supply tank, avoids the entry of air at the same time as water intake, and solves the problem of pressure fluctuation of low-pressure test equipment; when the water pumping peristaltic pump is powered off, the vacuum solenoid valve automatically closes to isolate the water path between the water supply tank and the fully enclosed stainless steel box, which can avoid the water in the water supply tank being automatically pressed into the fully enclosed stainless steel box due to the pressure difference, further ensuring its airtightness and reliability; due to the use of the water pumping peristaltic pump, a large amount of water will not enter the fully enclosed stainless steel box due to the pressure difference, thereby avoiding the problems of a sharp drop in temperature of the fully enclosed stainless steel box or unstable water level control when water is taken in.
[0013] When the air pressure in the fully enclosed stainless steel box of the utility model increases, the air pressure pushes the air pressure balance plate to move upward along the air outlet pipe, expanding the temporary storage space for gas, reducing the pressure of the gas to a constant pressure, the gravity of the air pressure balance plate is constant, the air pressure thrust is greater than the gravity of the air pressure balance plate, pushing the air pressure balance plate to move upward, and when the air pressure balance plate moves upward, the air pressure decreases accordingly until the air pressure thrust is the same as the gravity of the air pressure balance plate, the air pressure decreases, the gravity of the air pressure balance plate is greater than the air pressure thrust, and the air pressure balance plate moves downward, and the air pressure balance plate squeezes the gas to increase the air pressure until the air pressure thrust is equal to the gravity of the air pressure balance plate, thereby realizing automatic air pressure adjustment, and ensuring that the air pressure entering the low-pressure test equipment when the vacuum electric ball valve is opened is the setting device, thereby avoiding excessive air pressure and affecting the air pressure in the low-pressure test equipment.
[0014] In summary, the utility model meets the requirements of low-pressure test equipment for humidity measurement under low pressure, and solves problems such as pressure fluctuations of the test equipment caused by water replenishment and humidity fluctuations caused by inaccurate water level control. [Brief Description of the Drawings]
[0015] Figure 1 This is a front view of the humidification and water replenishment system of the low-pressure test equipment of the utility model;
[0016] Figure 2 It is a cross-sectional view of the water supply tank of the present utility model;
[0017] In the figure: 1. Water supply tank; 2. Vacuum solenoid valve; 3. Water peristaltic pump; 4. Fully enclosed stainless steel box; 5. Water level controller; 6. Vacuum electric ball valve; 7. Safety valve; 8. Heating tube; 9. Low pressure test equipment; 10. Exhaust pipe; 11. Air pressure balance plate; 12. Anti-slip ring; 13. Atomizer. [Specific implementation method]
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0019] Example 1: Please refer to the accompanying drawings of the specification Figure 1 and Figure 2 The humidification and water replenishment system of the low-pressure test equipment includes a fully enclosed stainless steel box 4, which is connected to a water replenishment component for replenishing water at the bottom; a water level controller 5 for monitoring the water level of the fully enclosed stainless steel box 4 is installed on the side wall of the fully enclosed stainless steel box 4; an atomizer 13 for atomization is fixedly installed at the bottom of the fully enclosed stainless steel box 4; a heating tube 8 for water temperature regulation is installed on the side wall of the fully enclosed stainless steel box 4; an air outlet of the fully enclosed stainless steel box 4 is provided with an air pressure balancing component for balancing the atomizing gas pressure; the air pressure balancing component is connected to a vacuum electric ball valve 6 through a pipeline, and the vacuum electric ball valve 6 is connected to the low-pressure test equipment 9 through a pipeline.
[0020] The water supply tank 1 utilizes a fully enclosed structure. This prevents air from entering the low-pressure test equipment 9 during humidification, thus preventing pressure fluctuations and enabling more precise pressure control. The vacuum electric ball valve 6 disconnects the fully enclosed stainless steel tank 4 from the low-pressure test equipment 9 when wet heat testing is not underway, minimizing the amount of air drawn from the low-pressure test equipment 9. The water level controller 5 monitors the water level in real time. When the water level falls below a preset value, the water replenishment component activates, automatically replenishing the fully enclosed stainless steel tank 4.
[0021] The water replenishment component includes a water supply tank 1, a vacuum solenoid valve 2 and a water pumping peristaltic pump 3. The water outlet of the water supply tank 1 is connected to the vacuum solenoid valve 2 through a pipe. The water outlet of the water supply tank 1 is located at the lower end of the side wall of the water supply tank 1. The vacuum solenoid valve 2 is connected to the input end of the water pumping peristaltic pump 3 through a pipe. The output end of the water pumping peristaltic pump 3 is connected to the fully enclosed stainless steel box 4 through a pipe.
[0022] When pumping water, the peristaltic pump 3 and the vacuum solenoid valve 2 are both started. The peristaltic pump 3 pumps the water in the water supply tank 1 into the fully enclosed stainless steel box 4. When not pumping water, the peristaltic pump 3 is powered off and the vacuum solenoid valve 2 is automatically closed.
[0023] The water outlet of the water supply tank 1 is located at the lower end of the side wall of the water supply tank 1, further reducing the possibility of air entering the water supply tank 1, avoiding the entry of air at the same time as water intake, and solving the problem of pressure fluctuation of the low-pressure test equipment 9; when the water-pumping peristaltic pump 3 is powered off, the vacuum solenoid valve 2 automatically closes to isolate the water channel between the water supply tank 1 and the fully enclosed stainless steel box 4, which can avoid the water in the water supply tank 1 being automatically pressed into the fully enclosed stainless steel box 4 due to the pressure difference, further ensuring its airtightness and reliability.
[0024] Since the water-pumping peristaltic pump 3 is used, a large amount of water will not enter the fully enclosed stainless steel box 4 due to the air pressure difference. Note: the fully enclosed stainless steel box 4 is in a low-pressure state, and the water supply tank 1 is in a normal pressure state, thereby avoiding problems such as a sharp drop in temperature of the fully enclosed stainless steel box 4 or unstable water level control when water enters.
[0025] A safety valve 7 for pressure relief is installed on the upper end of the side wall of the fully enclosed stainless steel box 4;
[0026] The safety valve 7 is set higher than the water level detection point on the water level controller 5;
[0027] The safety valve 7 is used to prevent the vacuum electric ball valve 6 from being opened, and automatically release the pressure in the fully enclosed stainless steel box 4 to avoid the pressure in the water supply tank 1 from increasing;
[0028] The air pressure balance assembly includes an air outlet pipe 10, an air pressure balance plate 11 and an anti-slip ring 12. The air outlet pipe 10 is fixedly installed on the top of the fully enclosed stainless steel box 4. The anti-slip ring 12 is fixedly connected to the bottom of the air outlet pipe 10. The air pressure balance plate 11 is slidably connected to the outer wall of the air outlet pipe 10 through a straight sliding hole, and the outer wall of the air pressure balance plate 11 is slidably connected to the inner wall of the fully enclosed stainless steel box 4.
[0029] The air outlet pipe 10 passes through the top pipeline and the vacuum electric ball valve 6.
[0030] When the air pressure in the fully enclosed stainless steel box 4 increases, it pushes the air pressure balance plate 11 to move upward along the air outlet pipe 10, expands the temporary storage space for gas, and reduces the pressure of the gas to a constant pressure. The gravity of the air pressure balance plate 11 is constant, and the air pressure thrust is greater than the gravity of the air pressure balance plate 11, which pushes the air pressure balance plate 11 to move upward. When the air pressure balance plate 11 moves upward, the air pressure decreases until the air pressure thrust is the same as the gravity of the air pressure balance plate 11. The air pressure decreases, and the gravity of the air pressure balance plate 11 is greater than the air pressure thrust, and the air pressure balance plate 11 moves downward. The air pressure balance plate 11 squeezes the gas to increase the air pressure until the air pressure thrust is equal to the gravity of the air pressure balance plate 11, thereby realizing automatic air pressure adjustment. This can ensure that the air pressure entering the low-pressure test equipment 9 when the vacuum electric ball valve 6 is opened is the setting device, thereby avoiding excessive air pressure and affecting the air pressure in the low-pressure test equipment 9.
[0031] In summary, the present invention meets the requirements of the low-pressure test equipment 9 for humidity measurement under low pressure, and solves the problems of pressure fluctuation of the test equipment caused by water replenishment and humidity fluctuation caused by inaccurate water level control.
[0032] The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field. The standard parts used can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connections adopt conventional connection methods in the existing technology, which will not be described in detail here.
[0033] The present invention is not limited to the above-mentioned embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.
Claims
1. A humidification and water replenishment system for low-pressure test equipment, comprising a fully enclosed stainless steel box (4), characterized in that: The bottom of the fully enclosed stainless steel box (4) is connected to a water replenishing component for replenishing water; A water level controller (5) for monitoring the water level of the fully enclosed stainless steel box (4) is installed on the side wall of the fully enclosed stainless steel box (4); An atomizer (13) for atomization is fixedly installed on the bottom of the fully enclosed stainless steel box (4); The side wall of the fully enclosed stainless steel box (4) is equipped with a heating pipe (8) for regulating water temperature; The air outlet of the fully enclosed stainless steel box (4) is provided with an air pressure balancing component for balancing the pressure of the atomized gas; The air pressure balance component is connected to a vacuum electric ball valve (6) via a pipeline, and the vacuum electric ball valve (6) is connected to a low pressure test device (9) via a pipeline.
2. The low pressure test equipment humidification and water replenishment system according to claim 1, characterized in that: The water replenishment assembly comprises a water supply tank (1), a vacuum solenoid valve (2) and a water pumping peristaltic pump (3); the water outlet of the water supply tank (1) is connected to the vacuum solenoid valve (2) via a pipeline; the water outlet of the water supply tank (1) is located at the lower end of the side wall of the water supply tank (1); the vacuum solenoid valve (2) is connected to the input end of the water pumping peristaltic pump (3) via a pipeline; and the output end of the water pumping peristaltic pump (3) is connected to a fully enclosed stainless steel box (4) via a pipeline.
3. The low pressure test equipment humidification and water replenishment system according to claim 2, characterized in that: A safety valve (7) for pressure relief is installed at the upper end of the side wall of the fully enclosed stainless steel box (4).
4. The low pressure test equipment humidification and water replenishment system according to claim 3, characterized in that: The safety valve (7) is arranged above the water level detection point on the water level controller (5).
5. The low pressure test equipment humidification and water replenishment system according to claim 4, characterized in that: The air pressure balancing assembly comprises an air outlet pipe (10), an air pressure balancing plate (11) and an anti-slip ring (12); the air outlet pipe (10) is fixedly mounted on the top of a fully enclosed stainless steel box (4); the bottom of the air outlet pipe (10) is fixedly connected with an anti-slip ring (12); the air pressure balancing plate (11) is slidably connected to the outer wall of the air outlet pipe (10) through a straight sliding hole, and the outer wall of the air pressure balancing plate (11) is slidably connected to the inner wall of the fully enclosed stainless steel box (4).
6. The low pressure test equipment humidification and water replenishment system according to claim 5, characterized in that: The air outlet pipe (10) is connected to the vacuum electric ball valve (6) through the top pipeline.